DSE Circle-ACT03B Relationship Between Chords and Angles at Centre

作者：: MrWat@SFCC(HK)

主題：: 角度, 圓

1. You can change the lengths of chords AB and CD by moving points A, B, C and D. 2. Observe the changes of the sizes of the angles at centre. Draw a conclusion if you can.

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七巧板揖人
三角形内角和，演示
max{f(x),g(x)} 與 min{f(x),g(x)}
象形圖 (找出最多/最少)
光的折射

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除法
圖
反射
代數
Dilation

DSE Circle-ACT03B Relationship Between Chords and Angles at Centre

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